Fixing the problem with PCIe/SATA on Rock 5 ITX

Did the video output of your board work after this fix? I tried installing alternative kernels using armbian-config, but afterward, I had no HDMI signal from either of the two HDMI ports.

I think the -current kernel in Armbian (6.12.31 today) is too old for video output to work.

On the plucky-based “rolling release” image I’m using, -edge is now at 6.15.0, and with that you get video output (up to 4k 30Hz) on one of the HDMI outputs (no audio support yet, or at least I don’t get HDMI output as an audio device I can choose).

See this page for the current state of development of upstream support for rk3588: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/notes-for-rockchip-3588/-/blob/main/mainline-status.md

That doesn’t cover the Radxa Rock 5 ITX board specifically, but most of the improvements get added to the ITX’s device tree shortly after. See “HDMI 4K30 support” being named for 6.15-rc1.

See in-review patchset to support DP (and enable the other HDMI port, which goes through a DP2HDMI bridge, in the Rock 5 ITX board):

https://lore.kernel.org/linux-rockchip/[email protected]/T/#mcdddc4b383c188d67082fe8b0590fd4ac8bc0427

Hopefully that makes it to 6.16 to enable the second HDMI port.

4K60 support is marked WIP, so that might take longer…

I am removing R29 tomorrow and a little nervous as a non-electronics guy. Got a new soldering iron with a 900-M-T1C tip specifically to remove this.
But what on earth is the connection between this resistor and the hdmi port?

A day later now - I am about to desolder but unsure if applying the iron on the reverse side will make the R29 pop-out from the top side? Or do I work on the top side? Looks too risky as there are two resistors close to each other and I cannot make out which one is R29 … Can somebody please advice which side to work on and which resistor from the top shot pic is the one that goes? I am postponing the operation until I get some kind of confirmation about how to go about it.

Edit: Looks like the top-side resistors are not the bottom-side one. I thought it was just the legs sticking out at the bottom at first glance …

Afer removal - did I do it right? Looks like a bombed out site from a satellite photo … >|<

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Great job, you didn’t even leave any trace, you did it better than many experienced engineers!

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